Water Pump Repair Kit for Mercury Mariner 25-50 HP Outboard - 821354A2, 18-4531

Water Pump Repair Kit for Mercury Mariner 25-50 HP Outboard

This water pump repair kit includes all necessary components to restore cooling system performance on Mercury and Mariner outboards, serving as a direct replacement for OEM cross-reference numbers 821354A2 and 18-4531.

Overview

This water pump repair kit is engineered for Mercury Mariner 25-50 HP outboard motors. It contains the impeller, gaskets, and seals needed to keep the cooling system running efficiently. A reliable water pump repair kit prevents overheating and extends engine life.

Built For Performance

• Includes a high-quality neoprene impeller for consistent water flow
• Supplied with all required gaskets and O-rings for a complete seal
• Constructed from corrosion-resistant materials for marine environments
• Engineered to meet OEM specifications for fit and function

Specs At A Glance

Good To Know

Q: Does this kit include the impeller? A: Yes, the kit includes a high-quality impeller and all necessary gaskets and seals for a complete overhaul.

Q: Will this fit my Mercury 40 HP outboard? A: This kit is designed for Mercury Mariner 25-50 HP outboards; confirm your engine serial number to ensure compatibility.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.